Angular Features and Major Differences

Declarative templates, dependency injection, end to end tooling

An application in Angular is a tree of individual components.

Directives add behavior to an existing DOM element or an existing component instance.

<p>You can define the template inline using the template property or in a separate HTML file linked in the component metadata using the templateUrl property.</p> Signup and view all the answers

<p>Modules are logical boundaries in your application, dividing it into separate modules to separate functionality.</p> Signup and view all the answers

<p>These options include declarations, imports, exports, providers, and bootstrap.</p> Signup and view all the answers

<p>ngOnInit is a life cycle hook called by Angular to indicate that Angular is done creating the component. It is used for initialization and declaration.</p> Signup and view all the answers

<p>The Constructor is a default method of the class that is executed when the class is instantiated. It ensures proper initialization of fields in the class and its subclasses.</p> Signup and view all the answers

<p>Two-way data binding allows data flow both ways. For example, [(ngModel)] in Angular synchronizes the data between the DOM and the component.</p> Signup and view all the answers

<p>The constructor should only be used to initialize class members, not to perform actual 'work'. Actual 'work' should be done in methods like ngOnInit.</p> Signup and view all the answers

<p>Services in Angular provide common functionality to various modules, allowing for better separation of concerns and modularity.</p> Signup and view all the answers

<p>Angular creates ElementInjector hierarchies implicitly for each DOM element. These injectors are created to provide dependencies for the elements.</p> Signup and view all the answers